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Share-based compensation
 12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Share-based compensation
Note 12 · Share-based compensation
As a result of the ASB sale transaction on December 31, 2024, previously recorded share-based awards to ASB participants under the EIP (defined below) were cancelled. Unless otherwise noted, amounts in the share-based compensation footnote include discontinued operations.
Under the 2010 Equity and Incentive Plan, as amended and restated effective February 9, 2024 (EIP), HEI can issue shares of common stock as incentive compensation to non-employee directors and selected employees and consultants in the form of stock options, stock appreciation rights, restricted shares, restricted stock units, performance shares and other share-based and cash-based awards.
As of December 31, 2024, approximately 1.8 million shares remained available for future issuance under the terms of the EIP, assuming recycling of shares withheld to satisfy statutory tax liabilities relating to EIP awards, including an estimated 0.7 million shares that could be issued upon the vesting of outstanding restricted stock units and the achievement of performance goals for awards outstanding under long-term incentive plans (assuming that such performance goals are achieved at maximum levels).
Restricted stock units awarded under the EIP in 2023 and 2022 will vest and be issued in unrestricted stock in three equal annual increments on the anniversaries of the grant date and are forfeited to the extent they have not become vested for terminations of employment during the vesting period, except that pro-rata vesting is provided for terminations due to death, disability and retirement. Restricted stock units expense has been recognized in accordance with the fair-value-based measurement method of accounting. Dividend equivalent rights are accrued and are paid at the end of the restriction period when the associated restricted stock units vest.
Stock performance awards granted under the 2024-26, 2023-25 and 2022-24 long-term incentive plans (LTIP) entitle the grantee to shares of common stock with dividend equivalent rights once service conditions and performance conditions are satisfied at the end of the three-year performance period. LTIP awards are forfeited for terminations of employment during the performance period, except that pro-rata participation is provided for terminations due to death, disability and retirement based upon completed months of service after a minimum of 12 months of service in the performance period. Compensation expense for the stock performance awards portion of the LTIP has been recognized in accordance with the fair-value-based measurement method of accounting for performance shares.
Under the 2011 Nonemployee Director Stock Plan (2011 Director Plan), HEI can issue shares of common stock as compensation to nonemployee directors of HEI and its principal subsidiaries. As of December 31, 2024, there were 168,177 shares remaining available for future issuance under the 2011 Director Plan.
Share-based compensation expense and the related income tax benefit from continuing operations were as follows:
(in millions)202420232022
HEI consolidated
Share-based compensation expense1
$3.6 $6.8 $7.5 
Income tax benefit0.3 1.4 1.5 
Hawaiian Electric consolidated
Share-based compensation expense1
1.8 3.3 3.0 
Income tax benefit0.2 0.8 0.7 
1For 2024, 2023 and 2022, the Company has not capitalized any share-based compensation.
Stock awards. HEI granted HEI common stock to nonemployee directors under the 2011 Director Plan as follows:
(dollars in millions)202420232022
Shares granted— 40,450 35,720 
Fair value$— $1.5 $1.5 
Income tax benefit— 0.4 0.4 
The number of shares issued to each nonemployee director of HEI and its principal subsidiaries is determined based on the closing price of HEI common stock on the grant date.
Restricted stock units.  Information about HEI’s grants of restricted stock units was as follows:
 202420232022
 Shares (1)Shares (1)Shares (1)
Outstanding, January 1189,024 $41.23 182,528 $39.75 233,448 $38.10 
Granted— — 100,088 42.41 98,463 41.31 
Vested(98,084)40.43 (84,794)39.41 (96,282)37.75 
Cancelled (2)
(24,241)42.06 — — — — 
Forfeited(1,071)41.97 (8,798)41.63 (53,101)39.01 
Outstanding, December 3165,628 $42.09 189,024 $41.23 182,528 $39.75 
Total weighted-average grant-date fair value of shares granted (in millions)
$— $4.2 $4.1 
(1)Weighted-average grant-date fair value per share based on the average price of HEI common stock on the date of grant.
(2)Represents activity of discontinued operations.
For 2024, 2023 and 2022, total restricted stock units and related dividends that vested had a fair value of $1.4 million, $3.7 million and $4.2 million, respectively, and the related tax benefits were $0.3 million, $0.8 million and $0.6 million, respectively.
As of December 31, 2024, there was $1.1 million of total unrecognized compensation cost related to the nonvested restricted stock units. The cost is expected to be recognized over a weighted-average period of 1.1 years.
Long-term incentive plan payable in stock.  The 2022-24, 2023-25 and 2024-26 LTIPs provide for performance awards under the EIP of shares of HEI common stock based on the satisfaction of performance goals, including a market condition goal. The number of shares of HEI common stock that may be awarded is fixed on the date the grants are made, subject to the achievement of specified performance levels and calculated dividend equivalents. The potential payout varies from 0% to 200% of the number of target shares, depending on the achievement of the goals. The market condition goal is based on HEI’s total shareholder return (TSR) compared to the Peer Group (Edison Electric Institute Index (EEI Index) for the 2022-24 performance period, and compared to the Company's compensation peer group consisting of companies in the EEI Index and approved by the Company's Compensation and Human Capital Management Committee for the 2023-25 and 2024-26 performance periods), in each case over the relevant three-year period. The other performance condition goals relate to EPS growth, cumulative EPS, return on average common equity (ROACE), carbon emissions reduction, Hawaiian Electric’s net income growth, credit rating and public safety and Pacific Current’s EBITDA growth and return on average invested capital.
LTIP linked to TSR.  Information about HEI’s LTIP grants linked to TSR was as follows:
 202420232022
 Shares(1)Shares(1)Shares(1)
Outstanding, January 176,477 $50.11 71,574 $47.67 90,974 $42.86 
Granted62,152 17.28 27,123 55.98 26,469 54.92 
Vested (issued or unissued and cancelled)(28,577)41.12 (18,691)48.62 (29,042)41.07 
Cancelled (2)
(10,821)55.46 — — — — 
Forfeited(790)55.64 (3,529)53.72 (16,827)44.45 
Outstanding, December 3198,441 $31.36 76,477 $50.11 71,574 $47.67 
Total weighted-average grant-date fair value of shares granted (in millions)
$1.1 $1.5 $1.5 
(1)Weighted-average grant-date fair value per share determined using a Monte Carlo simulation model.
(2)Represents activity of discontinued operations.
The grant date fair values of the shares were determined using a Monte Carlo simulation model utilizing actual information for the common shares of HEI and the Peer Group for the period from the beginning of the performance period to the grant date and estimated future stock volatility of HEI and the Peer Group over the remaining three-year performance period. The expected stock volatility assumptions for HEI and the Peer Group were based on the three-year historic stock volatility. A dividend assumption is not required for the Monte Carlo simulation because the grant payout includes dividend equivalents and projected returns include the value of reinvested dividends.
The following table summarizes the assumptions used to determine the fair value of the LTIP awards linked to TSR and the resulting fair value of LTIP awards granted:
 202420232022
Risk-free interest rate4.25 %4.19 %1.71 %
Expected life in years333
Expected volatility52.5 %33.1 %31.0 %
Range of expected volatility for Peer Group
12.3% to 52.5%
28.7% to 38.8%
25.4% to 76.7%
Grant date fair value (per share)$17.28 $55.98 $54.92 
There were no share-based LTIP awards linked to TSR with a vesting date in 2024 and 2023. For 2022, total vested LTIP awards linked to TSR and related dividends had a fair value of $0.8 million, and the related tax benefits were $0.1 million.
As of December 31, 2024, there was $1.1 million of total unrecognized compensation cost related to the nonvested performance awards payable in shares linked to TSR. The cost is expected to be recognized over a weighted-average period of 1.8 years.
LTIP awards linked to other performance conditions.  Information about HEI’s LTIP awards payable in shares linked to other performance conditions was as follows:
 202420232022
 Shares(1)Shares(1)Shares(1)
Outstanding, January 1327,085 $39.44 309,589 $39.50 306,342 $38.42 
Granted362,963 13.09 108,499 42.41 105,860 41.31 
Vested(113,118)34.93 (62,778)48.07 (71,807)37.68 
Increase above target/(cancelled) due to performance
(91,521)41.31 (13,153)36.59 36,505 35.75 
Cancelled (2)
(43,277)41.86 — — — — 
Forfeited(3,165)42.06 (15,072)42.19 (67,311)37.35 
Outstanding, December 31438,967 $18.17 327,085 $39.44 309,589 $39.50 
Total weighted-average grant-date fair value of shares granted (at target performance levels) (in millions)
$4.8 $4.6 $4.4 
(1)Weighted-average grant-date fair value per share based on the average price of HEI common stock on the date of grant.
(2)Represents activity of discontinued operations.
For 2024, 2023 and 2022, total vested LTIP awards linked to other performance conditions and related dividends had a fair value of $1.7 million, $2.9 million and $3.2 million, respectively, and the related tax benefits were $0.3 million, $0.6 million and $0.4 million, respectively.
As of December 31, 2024, there was $3.4 million of total unrecognized compensation cost related to the nonvested shares linked to performance conditions other than TSR. The cost is expected to be recognized over a weighted-average period of 1.8 years.